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Round-trip tables, charts, animation, media, sections and masters

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An owned corpus of those deck kinds survives open, save and reopen. The
check found the handout master — printed header, footer, date and slide
number — was dropped on save, so import and export now keep that part.
This commit is contained in:
Nikita Rakitin
2026-10-13 23:08:31 +03:00
parent 457406a7a5
commit 034b312a64
8 changed files with 699 additions and 24 deletions
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docs/gaps.md
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@@ -1,6 +1,6 @@
# Where DeckCraft falls short of PowerPoint
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-13 · **Change:** minor (3-D bevel, camera and face lighting rendered; previous: minor, IME composition and CJK interface text landed, #101; previous: minor, core-workflow alpha gate added; stage stays alpha; before that: major, first itemized gap list; full re-measure against PowerPoint for Mac 16.113.4 and the open GitHub issues) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
> **Last reviewed:** 2026-10-13 · **Last updated:** 2026-10-13 · **Change:** minor (owned PPTX corpus for more deck kinds; handout-master text kept; previous: minor, 3-D bevel, camera and face lighting rendered) · **Target:** Microsoft PowerPoint for Mac 16.113 (Microsoft 365)
Every known shortfall, one entry each, ranked by how much it stops someone who presents with
PowerPoint from switching. This is the work list: pick from the top. Numbers are summarized in
@@ -17,7 +17,7 @@ revision history.
| # | Gap | Category | Beta | Hours | Doc |
|---|---|---|:-:|---|---|
| 1 | PPTX never tested against a corpus of real decks | File format | B | 20–35 | [file-format-parity.md](file-format-parity.md) |
| 1 | PPTX corpus is only decks we author (no PowerPoint reference renders) | File format | B | 20–35 | [file-format-parity.md](file-format-parity.md) |
| 2 | Data loss and crashes on common paths (#60, #40, #59) | Stability | B | 6–12 | this file |
| 3 | PPTX round trip drops comment threads, media options, rewind (#70, #74, #77) | File format | B | 3–6 | [file-format-parity.md](file-format-parity.md) |
| 4 | SVG pictures don't render (EMF/WMF do) | File format | B | 6–12 | [file-format-parity.md](file-format-parity.md) |
@@ -58,12 +58,13 @@ revision history.
Detail in [file-format-parity.md](file-format-parity.md).
### PPTX has never met a corpus of real decks
- **Evidence:** every PPTX test (`crates/pptx/tests`, 30 tests) uses decks DeckCraft generates;
the 2026-10-07 alpha checklist already listed this as open. No reference renders from PowerPoint
exist to compare against.
### PPTX corpus is only decks we author
- **Evidence:** `crates/pptx/tests/corpus_kinds.rs` builds decks in this repo and checks open → save →
reopen (package parts and text): tables, charts, animations, media, sections, and several masters
and layouts. A handout master with a header, footer, date and slide number used to disappear on
save; that text is kept now. There is still no larger corpus and no reference render from PowerPoint.
- **Impact:** the main reason to switch is "open my PowerPoint decks". Fidelity on real decks
(corporate templates, SmartArt, `chartex` charts, embedded fonts, EMF) is unknown.
(corporate templates, SmartArt, `chartex` charts, embedded fonts, EMF) is still mostly unknown.
- **Estimate:** 20–35 h: build an owned corpus in `storytold/photocraft-corpus` style (craftrules
`standards/test-corpora.md`), add import → render → export → re-import checks, have the owner open
outputs in PowerPoint, fix what breaks. **Beta blocker.**
@@ -160,8 +161,8 @@ Detail in [file-format-parity.md](file-format-parity.md).
Detail in [animation-parity.md](animation-parity.md). 10–16 h; the pane is a **beta blocker**.
### Notes and Handout masters
- **Evidence:** checklist row missing; PPTX writes a notes master but there's no view to edit it,
and no handout master at all.
- **Evidence:** checklist row missing the editing view. PPTX writes a notes master, and a handout
master's header, footer, date and slide number are kept. There is no view to edit either master.
- **Estimate:** 4–6 h.
### Edit points, text warp, 3-D
@@ -256,6 +257,7 @@ Detail in [localization-parity.md](localization-parity.md).
| Date | Change | Summary |
|---|---|---|
| 2026-10-13 | minor | Owned PPTX corpus for tables, charts, animations, media, sections and masters. Handout-master text is kept; the corpus gap is now a larger set and PowerPoint reference renders |
| 2026-10-13 | minor | Shape, picture and table rendering checked against PowerPoint on ~150 synthetic edge-case slides; 3-D bevels, cameras and face lighting now render approximately (gap narrowed to extrusion, rigs and the 3-D pane) |
| 2026-10-12 | minor | IME composition in slide text and notes, and CJK interface text with real glyphs (#101): the IME gap is now Korean on the web and table-cell underlines |
| 2026-10-12 | minor | EMF/WMF text, pattern and hatch brushes drawn; legacy OLE and ActiveX previews shown; the SVG gap keeps only EMF clip regions |